/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 17:22:10,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 17:22:10,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 17:22:10,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 17:22:10,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 17:22:10,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 17:22:10,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 17:22:10,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 17:22:10,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 17:22:10,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 17:22:10,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 17:22:10,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 17:22:10,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 17:22:10,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 17:22:10,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 17:22:10,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 17:22:10,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 17:22:10,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 17:22:10,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 17:22:10,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 17:22:10,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 17:22:10,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 17:22:10,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 17:22:10,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 17:22:10,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 17:22:10,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 17:22:10,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 17:22:10,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 17:22:10,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 17:22:10,503 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 17:22:10,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 17:22:10,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 17:22:10,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 17:22:10,505 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 17:22:10,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 17:22:10,505 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 17:22:10,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 17:22:10,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 17:22:10,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 17:22:10,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 17:22:10,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 17:22:10,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 17:22:10,507 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 17:22:10,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 17:22:10,507 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 17:22:10,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 17:22:10,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 17:22:10,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 17:22:10,508 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 17:22:10,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 17:22:10,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 17:22:10,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 17:22:10,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 17:22:10,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 17:22:10,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 17:22:10,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:10,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 17:22:10,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 17:22:10,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 17:22:10,791 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 17:22:10,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 17:22:10,807 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 17:22:10,809 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 17:22:10,809 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 17:22:10,810 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-07-21 17:22:10,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc8929e72/71e58b8e30084e60b387f97dcb5a1bfc/FLAGe578fd9d6 [2020-07-21 17:22:11,410 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 17:22:11,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-07-21 17:22:11,427 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc8929e72/71e58b8e30084e60b387f97dcb5a1bfc/FLAGe578fd9d6 [2020-07-21 17:22:11,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc8929e72/71e58b8e30084e60b387f97dcb5a1bfc [2020-07-21 17:22:11,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 17:22:11,757 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 17:22:11,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 17:22:11,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 17:22:11,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 17:22:11,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:22:11" (1/1) ... [2020-07-21 17:22:11,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7adbdb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:11, skipping insertion in model container [2020-07-21 17:22:11,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:22:11" (1/1) ... [2020-07-21 17:22:11,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 17:22:11,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 17:22:12,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 17:22:12,017 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 17:22:12,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 17:22:12,176 INFO L208 MainTranslator]: Completed translation [2020-07-21 17:22:12,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:12 WrapperNode [2020-07-21 17:22:12,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 17:22:12,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 17:22:12,178 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 17:22:12,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 17:22:12,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:12" (1/1) ... [2020-07-21 17:22:12,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:12" (1/1) ... [2020-07-21 17:22:12,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:12" (1/1) ... [2020-07-21 17:22:12,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:12" (1/1) ... [2020-07-21 17:22:12,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:12" (1/1) ... [2020-07-21 17:22:12,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:12" (1/1) ... [2020-07-21 17:22:12,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:12" (1/1) ... [2020-07-21 17:22:12,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 17:22:12,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 17:22:12,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 17:22:12,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 17:22:12,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 17:22:12,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 17:22:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 17:22:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-07-21 17:22:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-07-21 17:22:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-07-21 17:22:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-07-21 17:22:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-07-21 17:22:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-07-21 17:22:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-07-21 17:22:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-07-21 17:22:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-21 17:22:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-07-21 17:22:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-07-21 17:22:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-07-21 17:22:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-07-21 17:22:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-07-21 17:22:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-07-21 17:22:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-07-21 17:22:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-07-21 17:22:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-07-21 17:22:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 17:22:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 17:22:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 17:22:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-07-21 17:22:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-07-21 17:22:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-07-21 17:22:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-07-21 17:22:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-07-21 17:22:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-07-21 17:22:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-07-21 17:22:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-07-21 17:22:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-07-21 17:22:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-21 17:22:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-07-21 17:22:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-07-21 17:22:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-07-21 17:22:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-07-21 17:22:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-07-21 17:22:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-07-21 17:22:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-07-21 17:22:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-07-21 17:22:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 17:22:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 17:22:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 17:22:12,764 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 17:22:12,765 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 17:22:12,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:22:12 BoogieIcfgContainer [2020-07-21 17:22:12,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 17:22:12,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 17:22:12,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 17:22:12,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 17:22:12,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:22:11" (1/3) ... [2020-07-21 17:22:12,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29fbadcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:22:12, skipping insertion in model container [2020-07-21 17:22:12,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:22:12" (2/3) ... [2020-07-21 17:22:12,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29fbadcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:22:12, skipping insertion in model container [2020-07-21 17:22:12,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:22:12" (3/3) ... [2020-07-21 17:22:12,779 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-07-21 17:22:12,790 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 17:22:12,803 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 17:22:12,819 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 17:22:12,857 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 17:22:12,857 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 17:22:12,858 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 17:22:12,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 17:22:12,858 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 17:22:12,858 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 17:22:12,858 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 17:22:12,858 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 17:22:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-07-21 17:22:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-07-21 17:22:12,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:12,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:12,890 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:12,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:12,896 INFO L82 PathProgramCache]: Analyzing trace with hash -1024647557, now seen corresponding path program 1 times [2020-07-21 17:22:12,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:12,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945897865] [2020-07-21 17:22:12,903 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:13,077 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:13,077 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:13,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:13,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:13,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:13,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:13,157 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945897865] [2020-07-21 17:22:13,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:13,158 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:13,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071690754] [2020-07-21 17:22:13,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:13,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:13,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:13,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:13,182 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 3 states. [2020-07-21 17:22:13,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:13,299 INFO L93 Difference]: Finished difference Result 366 states and 516 transitions. [2020-07-21 17:22:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:13,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2020-07-21 17:22:13,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:13,318 INFO L225 Difference]: With dead ends: 366 [2020-07-21 17:22:13,319 INFO L226 Difference]: Without dead ends: 234 [2020-07-21 17:22:13,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:13,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-21 17:22:13,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 226. [2020-07-21 17:22:13,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-07-21 17:22:13,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2020-07-21 17:22:13,415 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 75 [2020-07-21 17:22:13,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:13,416 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2020-07-21 17:22:13,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:13,416 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2020-07-21 17:22:13,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-07-21 17:22:13,427 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:13,428 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:13,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:13,645 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:13,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:13,646 INFO L82 PathProgramCache]: Analyzing trace with hash 106614370, now seen corresponding path program 1 times [2020-07-21 17:22:13,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:13,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [628442495] [2020-07-21 17:22:13,648 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:13,766 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:13,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:13,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 17:22:13,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:13,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:13,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [628442495] [2020-07-21 17:22:13,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:13,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:13,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842659866] [2020-07-21 17:22:13,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:13,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:13,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:13,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:13,852 INFO L87 Difference]: Start difference. First operand 226 states and 302 transitions. Second operand 3 states. [2020-07-21 17:22:13,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:13,919 INFO L93 Difference]: Finished difference Result 622 states and 856 transitions. [2020-07-21 17:22:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:13,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-07-21 17:22:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:13,927 INFO L225 Difference]: With dead ends: 622 [2020-07-21 17:22:13,927 INFO L226 Difference]: Without dead ends: 421 [2020-07-21 17:22:13,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:13,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-07-21 17:22:13,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 415. [2020-07-21 17:22:13,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-07-21 17:22:14,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 556 transitions. [2020-07-21 17:22:14,001 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 556 transitions. Word has length 76 [2020-07-21 17:22:14,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:14,001 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 556 transitions. [2020-07-21 17:22:14,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 556 transitions. [2020-07-21 17:22:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-07-21 17:22:14,004 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:14,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:14,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:14,218 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:14,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:14,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1201390399, now seen corresponding path program 1 times [2020-07-21 17:22:14,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:14,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235167884] [2020-07-21 17:22:14,220 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:14,335 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:14,335 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:14,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 17:22:14,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:14,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:14,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235167884] [2020-07-21 17:22:14,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:14,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:14,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173263840] [2020-07-21 17:22:14,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:14,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:14,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:14,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:14,382 INFO L87 Difference]: Start difference. First operand 415 states and 556 transitions. Second operand 3 states. [2020-07-21 17:22:14,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:14,454 INFO L93 Difference]: Finished difference Result 1178 states and 1628 transitions. [2020-07-21 17:22:14,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:14,455 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-07-21 17:22:14,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:14,468 INFO L225 Difference]: With dead ends: 1178 [2020-07-21 17:22:14,468 INFO L226 Difference]: Without dead ends: 788 [2020-07-21 17:22:14,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:14,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2020-07-21 17:22:14,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 780. [2020-07-21 17:22:14,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 780 states. [2020-07-21 17:22:14,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1055 transitions. [2020-07-21 17:22:14,540 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1055 transitions. Word has length 76 [2020-07-21 17:22:14,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:14,541 INFO L479 AbstractCegarLoop]: Abstraction has 780 states and 1055 transitions. [2020-07-21 17:22:14,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:14,541 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1055 transitions. [2020-07-21 17:22:14,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-21 17:22:14,544 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:14,545 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:14,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:14,760 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:14,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:14,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1503303426, now seen corresponding path program 1 times [2020-07-21 17:22:14,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:14,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229365277] [2020-07-21 17:22:14,763 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:14,854 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:14,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:14,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 17:22:14,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 17:22:14,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:14,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229365277] [2020-07-21 17:22:14,922 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:14,922 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:14,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441279996] [2020-07-21 17:22:14,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:14,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:14,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:14,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:14,926 INFO L87 Difference]: Start difference. First operand 780 states and 1055 transitions. Second operand 3 states. [2020-07-21 17:22:15,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:15,049 INFO L93 Difference]: Finished difference Result 2245 states and 3186 transitions. [2020-07-21 17:22:15,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:15,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-07-21 17:22:15,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:15,061 INFO L225 Difference]: With dead ends: 2245 [2020-07-21 17:22:15,061 INFO L226 Difference]: Without dead ends: 1492 [2020-07-21 17:22:15,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:15,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2020-07-21 17:22:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1492. [2020-07-21 17:22:15,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1492 states. [2020-07-21 17:22:15,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1492 states to 1492 states and 2086 transitions. [2020-07-21 17:22:15,159 INFO L78 Accepts]: Start accepts. Automaton has 1492 states and 2086 transitions. Word has length 95 [2020-07-21 17:22:15,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:15,160 INFO L479 AbstractCegarLoop]: Abstraction has 1492 states and 2086 transitions. [2020-07-21 17:22:15,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:15,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1492 states and 2086 transitions. [2020-07-21 17:22:15,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-21 17:22:15,167 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:15,167 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:15,381 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:15,382 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:15,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:15,383 INFO L82 PathProgramCache]: Analyzing trace with hash 301276929, now seen corresponding path program 1 times [2020-07-21 17:22:15,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:15,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [785567153] [2020-07-21 17:22:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:15,469 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:15,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:15,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 17:22:15,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:15,507 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 17:22:15,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:15,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [785567153] [2020-07-21 17:22:15,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:15,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:15,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024201867] [2020-07-21 17:22:15,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:15,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:15,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:15,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:15,511 INFO L87 Difference]: Start difference. First operand 1492 states and 2086 transitions. Second operand 3 states. [2020-07-21 17:22:15,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:15,606 INFO L93 Difference]: Finished difference Result 2874 states and 3952 transitions. [2020-07-21 17:22:15,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:15,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 163 [2020-07-21 17:22:15,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:15,618 INFO L225 Difference]: With dead ends: 2874 [2020-07-21 17:22:15,618 INFO L226 Difference]: Without dead ends: 1671 [2020-07-21 17:22:15,624 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:15,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2020-07-21 17:22:15,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1668. [2020-07-21 17:22:15,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-07-21 17:22:15,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2176 transitions. [2020-07-21 17:22:15,732 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2176 transitions. Word has length 163 [2020-07-21 17:22:15,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:15,733 INFO L479 AbstractCegarLoop]: Abstraction has 1668 states and 2176 transitions. [2020-07-21 17:22:15,733 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:15,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2176 transitions. [2020-07-21 17:22:15,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 17:22:15,739 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:15,740 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:15,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:15,954 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:15,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:15,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1914892441, now seen corresponding path program 1 times [2020-07-21 17:22:15,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:15,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612177714] [2020-07-21 17:22:15,955 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:16,034 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:16,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:16,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 17:22:16,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 17:22:16,106 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:16,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612177714] [2020-07-21 17:22:16,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:16,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:22:16,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379094182] [2020-07-21 17:22:16,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:22:16,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:16,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:22:16,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:22:16,110 INFO L87 Difference]: Start difference. First operand 1668 states and 2176 transitions. Second operand 5 states. [2020-07-21 17:22:16,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:16,851 INFO L93 Difference]: Finished difference Result 5178 states and 7041 transitions. [2020-07-21 17:22:16,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:16,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 17:22:16,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:16,877 INFO L225 Difference]: With dead ends: 5178 [2020-07-21 17:22:16,878 INFO L226 Difference]: Without dead ends: 3539 [2020-07-21 17:22:16,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:16,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2020-07-21 17:22:17,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3184. [2020-07-21 17:22:17,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3184 states. [2020-07-21 17:22:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4100 transitions. [2020-07-21 17:22:17,068 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4100 transitions. Word has length 129 [2020-07-21 17:22:17,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:17,068 INFO L479 AbstractCegarLoop]: Abstraction has 3184 states and 4100 transitions. [2020-07-21 17:22:17,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:22:17,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4100 transitions. [2020-07-21 17:22:17,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 17:22:17,072 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:17,072 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:17,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:17,286 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:17,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:17,287 INFO L82 PathProgramCache]: Analyzing trace with hash -58272937, now seen corresponding path program 1 times [2020-07-21 17:22:17,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:17,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614794826] [2020-07-21 17:22:17,288 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:17,356 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:17,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:17,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 17:22:17,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:17,419 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 17:22:17,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:17,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [614794826] [2020-07-21 17:22:17,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:17,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:22:17,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944059140] [2020-07-21 17:22:17,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:22:17,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:17,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:22:17,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:22:17,422 INFO L87 Difference]: Start difference. First operand 3184 states and 4100 transitions. Second operand 5 states. [2020-07-21 17:22:17,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:17,883 INFO L93 Difference]: Finished difference Result 6339 states and 8283 transitions. [2020-07-21 17:22:17,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 17:22:17,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 17:22:17,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:17,906 INFO L225 Difference]: With dead ends: 6339 [2020-07-21 17:22:17,907 INFO L226 Difference]: Without dead ends: 3184 [2020-07-21 17:22:17,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:17,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2020-07-21 17:22:18,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 3184. [2020-07-21 17:22:18,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3184 states. [2020-07-21 17:22:18,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 4004 transitions. [2020-07-21 17:22:18,100 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 4004 transitions. Word has length 129 [2020-07-21 17:22:18,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:18,101 INFO L479 AbstractCegarLoop]: Abstraction has 3184 states and 4004 transitions. [2020-07-21 17:22:18,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:22:18,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 4004 transitions. [2020-07-21 17:22:18,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 17:22:18,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:18,107 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:18,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:18,320 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:18,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:18,320 INFO L82 PathProgramCache]: Analyzing trace with hash -232748707, now seen corresponding path program 1 times [2020-07-21 17:22:18,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:18,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1618964732] [2020-07-21 17:22:18,321 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:18,433 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 17:22:18,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:18,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 17:22:18,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:18,463 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 17:22:18,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:18,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1618964732] [2020-07-21 17:22:18,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:18,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 17:22:18,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319801818] [2020-07-21 17:22:18,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 17:22:18,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:18,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 17:22:18,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:18,467 INFO L87 Difference]: Start difference. First operand 3184 states and 4004 transitions. Second operand 3 states. [2020-07-21 17:22:18,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:18,579 INFO L93 Difference]: Finished difference Result 5685 states and 7150 transitions. [2020-07-21 17:22:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 17:22:18,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-21 17:22:18,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:18,596 INFO L225 Difference]: With dead ends: 5685 [2020-07-21 17:22:18,596 INFO L226 Difference]: Without dead ends: 2525 [2020-07-21 17:22:18,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 17:22:18,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2020-07-21 17:22:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2525. [2020-07-21 17:22:18,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2525 states. [2020-07-21 17:22:18,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3177 transitions. [2020-07-21 17:22:18,754 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3177 transitions. Word has length 129 [2020-07-21 17:22:18,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:18,757 INFO L479 AbstractCegarLoop]: Abstraction has 2525 states and 3177 transitions. [2020-07-21 17:22:18,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 17:22:18,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3177 transitions. [2020-07-21 17:22:18,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 17:22:18,760 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:18,760 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:18,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:18,976 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:18,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:18,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1959893669, now seen corresponding path program 1 times [2020-07-21 17:22:18,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:18,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403411242] [2020-07-21 17:22:18,977 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:19,065 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:19,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:19,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 17:22:19,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 17:22:19,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:19,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403411242] [2020-07-21 17:22:19,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:19,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 17:22:19,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511869747] [2020-07-21 17:22:19,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 17:22:19,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:19,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 17:22:19,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 17:22:19,115 INFO L87 Difference]: Start difference. First operand 2525 states and 3177 transitions. Second operand 5 states. [2020-07-21 17:22:19,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:19,668 INFO L93 Difference]: Finished difference Result 5444 states and 6956 transitions. [2020-07-21 17:22:19,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:19,669 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2020-07-21 17:22:19,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:19,689 INFO L225 Difference]: With dead ends: 5444 [2020-07-21 17:22:19,689 INFO L226 Difference]: Without dead ends: 2941 [2020-07-21 17:22:19,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:19,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2020-07-21 17:22:19,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2629. [2020-07-21 17:22:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2629 states. [2020-07-21 17:22:19,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 3205 transitions. [2020-07-21 17:22:19,849 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 3205 transitions. Word has length 129 [2020-07-21 17:22:19,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:19,850 INFO L479 AbstractCegarLoop]: Abstraction has 2629 states and 3205 transitions. [2020-07-21 17:22:19,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 17:22:19,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 3205 transitions. [2020-07-21 17:22:19,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 17:22:19,853 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:19,853 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:20,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:20,068 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:20,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:20,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1120860007, now seen corresponding path program 1 times [2020-07-21 17:22:20,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:20,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809704862] [2020-07-21 17:22:20,070 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:20,151 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:20,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:20,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 17:22:20,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-21 17:22:20,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:20,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809704862] [2020-07-21 17:22:20,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:20,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 17:22:20,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378950116] [2020-07-21 17:22:20,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 17:22:20,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:20,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 17:22:20,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:20,194 INFO L87 Difference]: Start difference. First operand 2629 states and 3205 transitions. Second operand 6 states. [2020-07-21 17:22:20,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:20,371 INFO L93 Difference]: Finished difference Result 5334 states and 6680 transitions. [2020-07-21 17:22:20,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:20,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-21 17:22:20,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:20,388 INFO L225 Difference]: With dead ends: 5334 [2020-07-21 17:22:20,388 INFO L226 Difference]: Without dead ends: 2729 [2020-07-21 17:22:20,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:20,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2729 states. [2020-07-21 17:22:20,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2729 to 2709. [2020-07-21 17:22:20,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2709 states. [2020-07-21 17:22:20,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2709 states to 2709 states and 3267 transitions. [2020-07-21 17:22:20,546 INFO L78 Accepts]: Start accepts. Automaton has 2709 states and 3267 transitions. Word has length 129 [2020-07-21 17:22:20,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:20,548 INFO L479 AbstractCegarLoop]: Abstraction has 2709 states and 3267 transitions. [2020-07-21 17:22:20,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 17:22:20,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2709 states and 3267 transitions. [2020-07-21 17:22:20,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 17:22:20,550 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:20,551 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:20,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:20,764 INFO L427 AbstractCegarLoop]: === Iteration 11 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:20,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:20,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1942329383, now seen corresponding path program 1 times [2020-07-21 17:22:20,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:20,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749544940] [2020-07-21 17:22:20,765 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:20,859 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:20,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 17:22:20,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 17:22:20,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 17:22:20,904 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 17:22:20,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 17:22:20,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749544940] [2020-07-21 17:22:20,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 17:22:20,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 17:22:20,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740513265] [2020-07-21 17:22:20,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 17:22:20,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 17:22:20,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 17:22:20,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 17:22:20,908 INFO L87 Difference]: Start difference. First operand 2709 states and 3267 transitions. Second operand 6 states. [2020-07-21 17:22:21,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 17:22:21,022 INFO L93 Difference]: Finished difference Result 4625 states and 5657 transitions. [2020-07-21 17:22:21,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 17:22:21,023 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2020-07-21 17:22:21,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 17:22:21,036 INFO L225 Difference]: With dead ends: 4625 [2020-07-21 17:22:21,036 INFO L226 Difference]: Without dead ends: 1936 [2020-07-21 17:22:21,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 17:22:21,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2020-07-21 17:22:21,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1936. [2020-07-21 17:22:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1936 states. [2020-07-21 17:22:21,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2287 transitions. [2020-07-21 17:22:21,232 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2287 transitions. Word has length 129 [2020-07-21 17:22:21,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 17:22:21,232 INFO L479 AbstractCegarLoop]: Abstraction has 1936 states and 2287 transitions. [2020-07-21 17:22:21,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 17:22:21,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2287 transitions. [2020-07-21 17:22:21,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-21 17:22:21,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 17:22:21,236 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 17:22:21,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:21,451 INFO L427 AbstractCegarLoop]: === Iteration 12 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 17:22:21,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 17:22:21,451 INFO L82 PathProgramCache]: Analyzing trace with hash 473506967, now seen corresponding path program 1 times [2020-07-21 17:22:21,452 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 17:22:21,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1782813887] [2020-07-21 17:22:21,452 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:21,551 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 17:22:21,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 17:22:21,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 17:22:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 17:22:21,581 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 17:22:21,672 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 17:22:21,673 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 17:22:21,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 17:22:22,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:22:22 BoogieIcfgContainer [2020-07-21 17:22:22,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 17:22:22,017 INFO L168 Benchmark]: Toolchain (without parser) took 10260.86 ms. Allocated memory was 144.2 MB in the beginning and 380.1 MB in the end (delta: 235.9 MB). Free memory was 101.5 MB in the beginning and 266.5 MB in the end (delta: -164.9 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:22,018 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 17:22:22,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.19 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 180.1 MB in the end (delta: -79.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:22,019 INFO L168 Benchmark]: Boogie Preprocessor took 46.24 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 177.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:22,020 INFO L168 Benchmark]: RCFGBuilder took 541.17 ms. Allocated memory is still 201.9 MB. Free memory was 177.7 MB in the beginning and 147.0 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:22,021 INFO L168 Benchmark]: TraceAbstraction took 9242.46 ms. Allocated memory was 201.9 MB in the beginning and 380.1 MB in the end (delta: 178.3 MB). Free memory was 147.0 MB in the beginning and 266.5 MB in the end (delta: -119.4 MB). Peak memory consumption was 58.8 MB. Max. memory is 7.1 GB. [2020-07-21 17:22:22,024 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 419.19 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 101.1 MB in the beginning and 180.1 MB in the end (delta: -79.0 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.24 ms. Allocated memory is still 201.9 MB. Free memory was 180.1 MB in the beginning and 177.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 541.17 ms. Allocated memory is still 201.9 MB. Free memory was 177.7 MB in the beginning and 147.0 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9242.46 ms. Allocated memory was 201.9 MB in the beginning and 380.1 MB in the end (delta: 178.3 MB). Free memory was 147.0 MB in the beginning and 266.5 MB in the end (delta: -119.4 MB). Peak memory consumption was 58.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int m_st ; [L18] int t1_st ; [L19] int m_i ; [L20] int t1_i ; [L21] int M_E = 2; [L22] int T1_E = 2; [L23] int E_1 = 2; VAL [\old(E_1)=6, \old(M_E)=11, \old(m_i)=9, \old(m_pc)=10, \old(m_st)=3, \old(T1_E)=8, \old(t1_i)=5, \old(t1_pc)=4, \old(t1_st)=7, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L439] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L443] CALL init_model() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L354] m_i = 1 [L355] t1_i = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L443] RET init_model() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L444] CALL start_simulation() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L380] int kernel_st ; [L381] int tmp ; [L382] int tmp___0 ; [L386] kernel_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L387] FCALL update_channels() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L388] CALL init_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L151] COND TRUE m_i == 1 [L152] m_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L156] COND TRUE t1_i == 1 [L157] t1_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L388] RET init_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L389] CALL fire_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L240] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L245] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L250] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L389] RET fire_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L390] CALL activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L283] int tmp ; [L284] int tmp___0 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L102] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L105] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L115] __retres1 = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L117] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, is_master_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0] [L296] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L121] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L124] COND FALSE !(t1_pc == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L134] __retres1 = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L136] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L296] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, is_transmit1_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0] [L296] tmp___0 = is_transmit1_triggered() [L298] COND FALSE !(\read(tmp___0)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, tmp___0=0] [L390] RET activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L391] CALL reset_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L263] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L268] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L273] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L391] RET reset_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L394] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L397] kernel_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, kernel_st=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L398] CALL eval() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L187] int tmp ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L191] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L166] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L182] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=1, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1] [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp_ndt_1)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, tmp_ndt_1=0] [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L221] CALL transmit1() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L72] COND TRUE t1_pc == 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L83] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L85] t1_pc = 1 [L86] t1_st = 2 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L221] RET transmit1() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L191] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L194] CALL, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L166] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L182] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, \result=1, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L194] RET, EXPR exists_runnable_thread() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=-1] [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp_ndt_1) [L206] m_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1] [L207] CALL master() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L31] COND TRUE m_pc == 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L42] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L45] E_1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L46] CALL immediate_notify() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L312] CALL activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L283] int tmp ; [L284] int tmp___0 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L288] CALL, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L102] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L105] COND FALSE !(m_pc == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L115] __retres1 = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, __retres1=0, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L117] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \result=0, __retres1=0, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L288] RET, EXPR is_master_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, is_master_triggered()=0, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0] [L296] CALL, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L121] int __retres1 ; VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L124] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L125] COND TRUE E_1 == 1 [L126] __retres1 = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, __retres1=1, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L136] return (__retres1); VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, \result=1, __retres1=1, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L296] RET, EXPR is_transmit1_triggered() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, is_transmit1_triggered()=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0] [L296] tmp___0 = is_transmit1_triggered() [L298] COND TRUE \read(tmp___0) [L299] t1_st = 0 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=0, tmp___0=1] [L312] RET activate_threads() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L46] RET immediate_notify() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L47] E_1 = 2 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L50] COND TRUE 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L52] m_pc = 1 [L53] m_st = 2 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=1, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=2, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L207] RET master() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1] [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1, tmp=1, tmp_ndt_1=-1, tmp_ndt_2=-1] [L221] CALL transmit1() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L72] COND FALSE !(t1_pc == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L75] COND TRUE t1_pc == 1 VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L91] CALL error() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L11] __VERIFIER_error() VAL [\old(E_1)=2, \old(M_E)=2, \old(m_i)=0, \old(m_pc)=0, \old(m_st)=0, \old(T1_E)=2, \old(t1_i)=0, \old(t1_pc)=1, \old(t1_st)=1, E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 139 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.0s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2128 SDtfs, 1548 SDslu, 2214 SDs, 0 SdLazy, 804 SolverSat, 334 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1255 GetRequests, 1223 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3184occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 712 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1388 NumberOfCodeBlocks, 1068 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1248 ConstructedInterpolants, 0 QuantifiedInterpolants, 200624 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4072 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 314/314 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...